1.Early Experience with a cDNA Microarray in Colorectal Cancer.
Chung Su KEUM ; Ryung Ah LEE ; Young Joon HONG ; Seok Il HONG ; Dae Yong HWANG
Journal of the Korean Society of Coloproctology 2003;19(6):341-348
PURPOSE: A cDNA microarray is a systematic method to identify key molecules for prognosis and for treatment response by profiling thousands of genes expressed in a single cancer. The clinical value of cDNA microarray is still being investigated in various fields. This technique could be used in detecting molecules important for cancer to develop, to monitor the effect of new cancer therapeutics, and to give a prognosis for cancer patients. We now report the results of our initial cDNA microarray data to analyze the genome pattern of colorectal cancer tissues and to evaluate the possibility of using cDNA microarrays in a clinical setting for cancer patients. METHODS: We used the general cDNA microarray technique with a 2.4 K cDNA chip provided by Macrogene company. RNA extracted from seven colorectal cancer tissues was amplified by using RT-PCR (reverse transcriptase-polymerase chain reaction), and applied to a cDNA chip to produce an antigen-antibody reaction. The results were analyzed individually and hierarchically. RESULTS: All seven tested cancer tissues were harvested from operative specimens at the Korea Cancer Center Hospital. The male-to-female ratio was 4 to 3. Five patients were TNM stage II, and two patients were stage III. Eighteen genes were upregulated in stage II patients, and 51 in stage III patients. The number of genes discriminating stage was 69, including 8 control genes, 4 ribosomal genes, 5 EST genes, 10 known non-functional genes, 23 genesof unknown function, and 19 possible cancer-related genes. A hierarchial graph showed similar patterns within a stage, which suggests that genetic patterns might affect clinical characteristics. CONCLUSIONS: Seven colorectal cancer tissues were analyzed with the cDNA microarray technique using 2.4 K cDNA chip. Authors could identify 69 genes that showed the significant change of expression. Although our reports presented the preliminary results, we think that the cDNA microarray will be able to offer an informative results to predict cancer development and progression in colorectal cancer.
Antigen-Antibody Reactions
;
Colorectal Neoplasms*
;
DNA, Complementary*
;
Genome
;
Humans
;
Korea
;
Oligonucleotide Array Sequence Analysis*
;
Prognosis
;
RNA
2.A Case of Transcatheter Arterial Embolization-nduced Hepatobronchial Fistula in a Patient with Hepatocellular Carcinoma.
Won Young TAK ; Chang Min JO ; Min Su KEUM ; Dae Hyun KIM ; Young Oh KWEON ; Sung Kook KIM ; Yong Hwan CHOI ; Joon Mo CHUNG
The Korean Journal of Hepatology 1999;5(1):55-58
Transcatheter arterial embolization (TAE) is widely used in the treatment of unresectable hepatocellular carcinoma. Its common complications are right upper quadrant pain, nausea, vomiting, and rare complications include focal pancreatic necrosis, gastric ulcer, renal failure, DIC, biliary tree necrosis and splenic infarction and so on. It has been reported that hepatobronchial fistula could develop as a pleuropulmonary complication of liver abscess. We report a case of hepatobronchial fistula caused by complicating liver abscess in a patient with hepatocellular carcinoma who was treated with TAE.
Biliary Tract
;
Carcinoma, Hepatocellular*
;
Dacarbazine
;
Fistula*
;
Humans
;
Liver Abscess
;
Nausea
;
Necrosis
;
Renal Insufficiency
;
Splenic Infarction
;
Stomach Ulcer
;
Vomiting
3.Morphological Studies on Fuchs`Dystrophy.
Yang Keum KANG ; Min Su PARK ; Eun A KIM ; Jang Hyun CHUNG
Journal of the Korean Ophthalmological Society 1997;38(11):1931-1935
Light andelectron microscopic findings of Fuchs`dystrophy were examined in a corneal button obtained following a penetrating keratoplasty. In light microscopic study, an avascular connective tissue was observed between the epithelial basement membrane and Bowman`s layer. Fibroblast-like cells scattered on the denuded surface of the Descemet`s membrane were found in a flat-mounted specimen examined after alizarine red and tryphan blue staining. A slightly thickened Descemet`s membrane covered with the disorganized endothelium was observed in a electron microscopy. Swollen organelles and vacuoles in the cytoplasm were found as an internal structure of the endothelium.
Basement Membrane
;
Connective Tissue
;
Cytoplasm
;
Endothelium
;
Keratoplasty, Penetrating
;
Membranes
;
Microscopy, Electron
;
Organelles
;
Vacuoles
4.A Case of Chronic Active Hepatitis Developed in Patient with Psoriasis after Long-term Methotrexate Treatment.
Dae Hyun KIM ; Jae Hyun JO ; Min Su KEUM ; Seong Gon CHOI ; Chang Hyeong LEE ; Young Oh KWEON ; Sung Kook KIM ; Yong Whan CHOI ; Joon Mo CHUNG
The Korean Journal of Hepatology 1997;3(1):78-84
Methotrexate (MTX) has been widely used in the treatment of psoriasis and rheumatoid arthritis. But prolonged use of MTX can induce hepatic fibrosis and even cirrhosis. To date, in Korea, there have been very few reports on hepatotoxicity due to MTX, and no report on biopsy-proven chronic active hapatitis. We report one patient who developed chronic acitve hepatitis while taking long-term daily dose of MTX(10mg per day) for psoriasis for a prolonged period.
Arthritis, Rheumatoid
;
Fibrosis
;
Hepatitis
;
Hepatitis, Chronic*
;
Humans
;
Korea
;
Methotrexate*
;
Psoriasis*
5.A case of polymyositis associated with scrub typhus.
Young Seok WOO ; Chae Ryung JANG ; Sung Su JEONG ; Dong Ju KEUM ; Kwang Yul JANG ; Choon Hee SON ; Sung Won LEE ; Won Tae CHUNG
Korean Journal of Medicine 2001;61(3):298-301
We report the case of a 32-year-old female who developed polymyositis associated with scrub typhus. She exhibited the eschar with high titer of anti-Rickettsia(R)-tsutsugamushi antibody, severe muscle weakness, markedly elevated serum levels of muscle enzymes, EMG changes, and infiltration of macrophages in a muscle biopsy specimen. Initiation of appropriate antibiotic therapy resulted in complete healing of scrub typhus and disappearance of symptoms and signs of polymyositis within 1 month after high dose steroid therapy. We suggest that scrub typhus also be included within the causes of idiopathic inflammatory polymyositis.
Adult
;
Biopsy
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Female
;
Humans
;
Macrophages
;
Muscle Weakness
;
Polymyositis*
;
Scrub Typhus*
6.Nontuberculous Mycobacterial Lung Disease Caused by Mycobacterium simiae: The First Reported Case in South Korea.
Suk Hyeon JEONG ; Su Young KIM ; Hyun LEE ; Jun Soo HAM ; Keum Bit HWANG ; Subin HWANG ; Sun Hye SHIN ; Myung Jin CHUNG ; Seung Heon LEE ; Sung Jae SHIN ; Won Jung KOH
Tuberculosis and Respiratory Diseases 2015;78(4):432-435
This is a report of the first South Korean case of a lung disease caused by Mycobacterium simiae. The patient was a previously healthy 52-year-old female. All serial isolates were identified as M. simiae by multi-locus sequencing analysis, based on hsp65, rpoB, 16S-23S rRNA internal transcribed spacer, and 16S rRNA fragments. A chest radiography revealed deterioration, and the follow-up sputum cultures were persistently positive, despite combination antibiotic treatment, including azithromycin, ethambutol, and rifampin. To the best of our knowledge, this is the first confirmed case of a lung disease caused by M. simiae in South Korea.
Azithromycin
;
Bronchiectasis
;
Ethambutol
;
Female
;
Follow-Up Studies
;
Humans
;
Korea*
;
Lung Diseases*
;
Lung*
;
Middle Aged
;
Mycobacterium*
;
Nontuberculous Mycobacteria
;
Radiography
;
Rifampin
;
Sputum
;
Thorax
7.The anti-inflammatory effect of Cheongseoikki-tang ethanol extract on allergic reactions mediated by bone marrow-derived mast cells.
Joon-Ho KEUM ; Ok-Hwa KANG ; Sung-Bae KIM ; Su-Hyun MUN ; Yun-Soo SEO ; Ma-Ryong KIM ; Jung-Rae RHO ; Young-Seob LEE ; Chung-Berm PARK ; Young-Guk KIM ; Yong-Il KIM ; Sin-Hee HAN ; Dong-Yeul KWON
Chinese journal of integrative medicine 2013;19(5):380-386
OBJECTIVECheongseoikki-tang (CIT, Korean), also called Qingshu Yiqi decoction () and Seisho-ekki-to (Japanese), is well known as an effective traditional combination of herbs for treating cardiovascular diseases. This study was to research its effects on bone marrow-derived mast cell (BMMC)-mediated allergy and inflammation mechanisms.
METHODSIn this study, the biological effect of Cheongseoikki-tang ethanol extract (CITE) was evaluated, focusing on its effects on the production of allergic mediators by phorbol 12-myristate 13-acetate (PMA) plus calcium ionophore A23187 (A23187)-stimulated BMMCs. These allergic mediators included interleukin-6 (IL-6), prostaglandin D2 (PGD2), leukotriene C4 (LTC4), and β-hexosaminidase (β-hex).
RESULTSOur data revealed that CITE inhibited the production of IL-6, PGD2, LTC4, and β-hex induced by PMA plus A23187 (P<0.05).
CONCLUSIONThese findings indicate that CITE has the potential for use in the treatment of allergy.
Animals ; Anti-Inflammatory Agents ; pharmacology ; therapeutic use ; Bone Marrow Cells ; pathology ; Calcimycin ; pharmacology ; Cell Degranulation ; drug effects ; Cell Survival ; drug effects ; Drugs, Chinese Herbal ; pharmacology ; therapeutic use ; Hypersensitivity ; drug therapy ; pathology ; Interleukin-6 ; secretion ; Leukotriene C4 ; pharmacology ; Male ; Mast Cells ; drug effects ; pathology ; physiology ; Mice ; Mice, Inbred BALB C ; Prostaglandin D2 ; biosynthesis ; Tetradecanoylphorbol Acetate ; pharmacology ; beta-N-Acetylhexosaminidases ; metabolism
8.The 1998, 1999 Patterns of Care Study for Breast Irradiation after Mastectomy in Korea.
Ki Chang KEUM ; Su Jung SHIM ; Ik Jae LEE ; Won PARK ; Sang wook LEE ; Hyun Soo SHIN ; Eun Ji CHUNG ; Eui Kyu CHIE ; Il Han KIM ; Do Hoon OH ; Sung Whan HA ; Hyung Sik LEE ; Sung Ja AHN ; Moon June CHO ; Juhn Kyu LOH ; Kyung Ran PARK ; Doo Ho CHOI ; Myung Za LEE ; Ki Jung AHN ; Won Dong KIM ; Bo Kyoung KIM ; Mison CHUN ; Jin Hee KIM ; Chang Ok SUH
The Journal of the Korean Society for Therapeutic Radiology and Oncology 2007;25(1):7-15
PURPOSE: To determine the patterns of evaluation and treatment in patients with breast cancer after mastectomy and treated with radiotherapy. A nationwide study was performed with the goal of improving radiotherapy treatment. MATERIALS AND METHODS: A web-based database system for the Korean Patterns of Care Study (PCS) for 6 common cancers was developed. Randomly selected records of 286 eligible patients treated between 1998 and 1999 from 17 hospitals were reviewed. RESULTS: The ages of the study patients ranged from 20 to 80 years (median age 44 years). The pathologic T stage by the AJCC was T1 in 9.7% of the cases, T2 in 59.2% of the cases, T3 in 25.6% of the cases, and T4 in 5.3% of the cases. For analysis of nodal involvement, N0 was 7.3%, N1 was 14%, N2 was 38.8%, and N3 was 38.5% of the cases. The AJCC stage was stage I in 0.7% of the cases, stage IIa in 3.8% of the cases, stage IIb in 9.8% of the cases, stage IIIa in 43% of the cases, stage IIIb in 2.8% of the cases, and IIIc in 38.5% of the cases. There were various sequences of chemotherapy and radiotherapy after mastectomy. Mastectomy and chemotherapy followed by radiotherapy was the most commonly performed sequence in 47% of the cases. Mastectomy, chemotherapy, and radiotherapy followed by additional chemotherapy was performed in 35% of the cases, and neoadjuvant chemoradiotherapy was performed in 12.5% of the cases. The radiotherapy volume was chest wall only in 5.6% of the cases. The volume was chest wall and supraclavicular fossa (SCL) in 20.3% of the cases; chest wall, SCL and internal mammary lymph node (IMN) in 27.6% of the cases; chest wall, SCL and posterior axillary lymph node in 25.9% of the cases; chest wall, SCL, IMN, and posterior axillary lymph node in 19.9% of the cases. Two patients received IMN only. The method of chest wall irradiation was tangential field in 57.3% of the cases and electron beam in 42% of the cases. A bolus for the chest wall was used in 54.8% of the tangential field cases and 52.5% of the electron beam cases. The radiation dose to the chest wall was 45~59.4 Gy (median 50.4 Gy), to the SCL was 45~59.4 Gy (median 50.4 Gy), and to the PAB was 4.8~38.8 Gy, (median 9 Gy) CONCLUSION: Different and various treatment methods were used for radiotherapy of the breast cancer patients after mastectomy in each hospital. Most of treatment methods varied in the irradiation of the chest wall. A separate analysis for the details of radiotherapy planning also needs to be followed and the outcome of treatment is needed in order to evaluate the different processes.
Breast Neoplasms
;
Breast*
;
Chemoradiotherapy
;
Drug Therapy
;
Humans
;
Korea*
;
Lymph Nodes
;
Mastectomy*
;
Mastectomy, Radical
;
Radiotherapy
;
Thoracic Wall